Home / 28,458,490.59-39,272,671.83-15,405,746.05

Finding the Fourth Proportional to 28,458,490.59, 39,272,671.83 and 15,405,746.05

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Solution

The fourth proportional to 28,458,490.59, 39,272,671.83 and 15,405,746.05 is: 21,259,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458,490.59 : 39,272,671.83 = 15,405,746.05 : x
  2. Step 2: Convert to fraction form
    28,458,490.59/39,272,671.83 = 15,405,746.05/x
  3. Step 3: Cross multiply
    28,458,490.59x = 39,272,671.83 × 15,405,746.05
  4. Step 4: Simplify right side
    28,458,490.59x = 605,024,808,673,959.50
  5. Step 5: Solve for x
    x = 605,024,808,673,959.50/28,458,490.59
  6. Step 6: Final answer
    x = 21,259,905.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.